Have an old motorbike and inside of fuel tank was quite rusty - superficial I think but enough to clog up carbs. So I have:
- drained the tank
- filled with vinegar
- left for 36 hrs sloshing it occasionally
- drained it (lots of rust flakes and rust coloured vinegar out)
- hose pipe inside and rinsed
- it looks very clean
- filled with water and bicarb soda
- rinsed with water
- empty as best is possible
- filled to the brim with petrol (to avoid flash rusting if left to dry)
- added Wynns dry fuel to absorb/emulsify the water
- plan to leave for a while and then drain a mug flu or 2 of water from the prime pump (thinking water sinks to the bottom)
And then good to go.
Now I've done all this. But is the logic sound, or have I really messed up.
It's chemistry rather than physics. Personally I'd have used another acid to pick up the oxide, probably phosphoric like most rust removers. But your procedure seems sound
and not drying the tank but using an emulsifier that'll burn off (I think) - seem OK
nice try... empty the tank od fuel allow to vent/ dry them use a proper tank liner the stuff from frosts in rochdale is best..
Now I've done all this. But is the logic sound, or have I really messed up.
I've no idea about the answer to your question, but surely the time to ask is [i]before[/i] you did all those things? If you're wrong it's a bit late.
Cougar, very true but enthusiasm got the better of me and I reckon if I'm wrong, it'll not be catastrophic!
Then I wish you well. (-:
Coke is a better rust remover than vinegar as it contains phosphoric acid. Have cleaned loads of stuff with a mixture of that or brick cleaner for really knackered stuff.
I've also used these [url= http://www.fuel-tank-renu.co.uk/pages/tanks.html ]people[/url] before on sumps that were dying. The coating's a bit like glass reinforced plasticoat, only thicker and a bit more gloopy. Worked a treat.